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Ocean tide energy horizontal shaft self-compensation bidirectional overall direction regulation generating set

A power generation device and tidal current energy technology, applied in hydroelectric power generation, safety devices, engine components, etc., can solve problems such as cable entanglement and difficulty in achieving long-term complete sealing, and achieve continuous and stable work, simple structure, and reliable work.

Inactive Publication Date: 2012-03-14
NORTHEAST NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The direction adjustment device of the horizontal axis tidal current energy generator is similar to the horizontal axis wind power generator, and must use transmission slip rings to solve the problem of cable entanglement during the direction adjustment of the tidal current energy generator turbine. It is difficult for the power transmission slip ring to be completely sealed for a long time, so its life determines the reliability of the whole machine

Method used

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  • Ocean tide energy horizontal shaft self-compensation bidirectional overall direction regulation generating set
  • Ocean tide energy horizontal shaft self-compensation bidirectional overall direction regulation generating set
  • Ocean tide energy horizontal shaft self-compensation bidirectional overall direction regulation generating set

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Embodiment Construction

[0010] This invention mainly is made up of underwater generator part, tail rudder part, support part. The underwater generator part is composed of a hyperboloid blade horizontal axis tidal current energy turbine 1, an underwater direct drive generator 2, and a side shaft 3 with a fairing. The tail rudder part is composed of double tail rudder brackets 7, a tail rudder 8 with a symmetrical airfoil and a gravity adjustment block 9 that are limited to freely rotate within ±5°. The support part is made up of turning shaft 4, underwater bearing 5 and gravity support 6. The hyperboloid blade horizontal axis tidal current energy turbine 1 is installed on the main shaft of the underwater direct-drive generator 2, and the front part of the center of gravity on both sides of the underwater direct-drive generator 2 is fixedly installed with a side shaft 3 with a fairing. The side shaft 3 and the turning shaft 4 are connected by flanges with bolts, the turning shaft 4 passes through the ...

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Abstract

The invention belongs to the field of energy and relates to an ocean tide energy horizontal shaft self-compensation bidirectional overall direction regulation generating set. A turbine disclosed by the invention is composed of an efficient four-blade hyperbolic airfoil, and the electricity is generated via an underwater direct-drive permanent magnet alternating-current generator. A horizontal tail vane with a symmetrical airfoil is adopted. A horizontal overturn shaft is arranged before the overall center of gravity of the generating set, and the generating set can rotate around the overturn shaft for 360 degrees. The horizontal overturn shaft is spanned on a seabed gravity bracket so that the generating set and bidirectional ocean currents are in the same direction. The positive and negative directions of the generating set are changed along the change of the tide. A gravity regulating body is installed, and a speed-up mechanism is omitted through the adoption of a direct-drive mode of the generating set, so that the problem of corrosion resistance is avoided. The sealed underwater direct-drive permanent magnet alternating-current generator has high efficiency and corrosion resistance under low rotating speeds. The ocean tide energy horizontal shaft self-compensation bidirectional overall direction regulation generating set has the characteristics of simple and reliable structure, resistance to water corrosion and damage, and the like and can continuously and stably work for a long time in the sea.

Description

technical field [0001] The invention belongs to the field of energy, and relates to a device for obtaining tidal current energy from seawater to generate electricity. The device automatically turns over and adjusts the direction of the turbine of a horizontal-axis underwater generator, so that the whole device automatically aligns with the direction of the tidal current to maximize the capture of ocean current energy. Background technique [0002] At present, the traditional fossil energy is being exhausted day by day. The international energy crisis and continuous environmental deterioration have made countries intensify their efforts to develop new renewable energy. Ocean energy is a kind of renewable energy with abundant reserves. Ocean energy, especially tidal current energy, has the incomparable sustainability, regularity and predictability of other ocean energy, and has the most commercial prospects. Internationally, the technology of horizontal axis tidal current powe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03B13/10F03B3/00F03B15/00
CPCY02E10/20
Inventor 朱挽强张雪明徐明奇张萧董永军
Owner NORTHEAST NORMAL UNIVERSITY
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